Window



June 4, A. M. WHITNE'Y WINDOW 3 Sheets-Shet l Filed Dec. 30, 1938 """ksv 11 sillnfllilrl.) Il

VIWWww By JM/@wm Attorneys 'June 4, 1940'. A M. WH|TNEY 2,202,818

WINDOW Filed Dec. 50, 1938 3 SheellS--Sheel 2 A ttorneys June 4, 1940. A. M, wHn-NEY 2,202,818

WINDOW Filed Deo. 3Q, 1938 3 Sheets-Sheet '5 A orneys Patented June 4, 1940 UNITED STATES PATENT OFFICE 1 Claim.

The present invention relates to new and useful improvementsin windows of the type comprising vertically sliding sashes and has for its primary object to provide, in a manner as hereinafter set forth, novel means for assisting in raising the sashes.

Another very important object of the invention is to provide a window structure of the character described comprising novel means for weatherlO stripping the sashes.

Still another important object of the invention is to provide a window of the aforementioned character embodying a construction and arrangement which is such that the sashes may be ex-v 15 peditiously removed from the frame when necessary for any reason, as when access is desired to the lifting and weatherstripping means.

A still further important object of the invention is toprovide a windowl structure comprising unique means for firmly securingr the sashes against sliding movement in any position.

Other objects of the invention are to provide a window which will be comparatively simple in` construction, strong, durable, highly eiiicient and reliable in operation, attractive in appearance` and which may be manufactured and installed at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a view partially in front elevation and partially in vertical section, showing a window constructed in accordance with the present invention.

Figure 2 is a view in horizontal section, taken 40 substantially 0n the line 2-2 of Fig. 1.

Figure 3 is a vertical sectional view through the frame with the sashes omitted.

Figure 4 is a perspective view of a side portion of the lower sash.

Figure 5 is a vertical sectional View, taken substantially on the line 5-5 of Fig. 3.

Figure 6 is a vertical sectional view, taken substantially on the line 6-6 of Fig. 5.

Figure 7 is a detail view in perspective of one 50 of the sash locks.

Figure 8 is a perspective view of an end portion of one of the combination sash lifting straps and weatherstrips.

Referring now to the drawings in detail, it will 55 be seen that the embodiment of the invention which has been illustrated comprises a frame which is designated generally by the reference numeral I. As best seen in Fig. 2 of the drawings, the frame I is constructed in a manner` to provide Vertical side chambers 2. Mounted for vertical sliding movement in the frame I are upper and lower sashes 3 and 4, respectively.

As also shown to advantage in Fig. 2 of the drawings, the frame I includes vertical side members 5 and 6 having projecting therefrom guides 'I between which the sashes 3 and 4 are slidable. The members 5 are permanently secured in the frame structure I while the outer members 6 are removable to permit removal of the sashes 3 and 4. The adjacent vertical marginal portions of the members 5 and 6 are rabbeted in a manner to define, in conjunction with each other, grooves 8 the purpose of which will be presently set forth. The vertical side edges of the sashes 3 and 4 are also provided with grooves 9 which are opposed to the grooves 8 and the purpose of which will also be presently set forth.

Mounted on the members 5 and E in the chambers 2 of the frame I are metallic casings Ill. Rotatably mounted in the casings I0 are peripherally grooved pulleys II. Springs I2 in the pulleys II are connected to said pulleys in a manner to be wound thereby when said pulleys are rotated in one direction. The casings I0 extend throu-gh openings which are provided therefor in the members 5 and B of the frame I and are secured thereto by vertical flanges I3. The flanges I3 extend vertically from the inner walls I4 of the casings II'I and it will be observed that said flanges are recessed in the inner sides of the members 5 and 6. This is shown to advantage in Fig. 5 of the drawings. The anges I3 and the inner walls I4 are provided with vertical grooves constituting continuations of the grooves 8.

It will be observed that two casings Ill, pulleys II, etc., are providedl for each sash 3 and 4, one on each sash in the frame structure I. The inner walls I4 of the casings I0 have formed therein openings I5 for the passage of flexible straps I6 of suitable material which travel around the pulleys II. The end portions of the straps I6 are firmly secured to the upper and lower portions of the sashes 3 and 4, as at I'I. Grooved. rollers IB are journalled between the side walls of the casings I0 in the openings I5 over which the straps I6 travel as they enter and leave said casings. Projecting from the opposite sides of the flexible straps I6 are longitudinally extending beads or ribs I9 which travel in the grooves 8 and 9 in a manner to close and seal the space between the vertical sides of the sashes 3 and 4 and the opposed side portions of the frame I. 'Ihe beads or ribs I 9 are of suitable resilient material, preferably rubber.

Mounted in the openings I6 in the casings I0 between the rolls I8 are locks 2U for the sashes 3 and 4. The locks 20 are in the form of shoes which are frictionally engageable with the vertical sides of the sashes 3 and 4. Also, the locks 20 are shaped to substantially close the space between the ingoing and outgoing portions of the straps I6 in the openings I5 of the casings I0. Referring now to Figs. 5, 6 and 7 of the drawings, it will be seen that the locks 2|] have formed therein openings 2I which accommodate cam shafts 22 which extend between the side walls of the casings IU. It may be well to here state that the cam shafts 22 constitute means for engaging the locks 20 with the sashes 3 and 4. The cam shafts 22 project beyond one side of thel casings I0 through the frame structure I and have formed therein square sockets 23 (see Fig. 6) which are adapted to receive an operating key 24.

It is thought that the operation of the invention will be readily apparent from a consideration of the foregoing. When the sashes are W- ered the straps I 6 travel around the pulleys II and frictionally drive said pulleys in a direction to Wind the springs I2. Thus, when it is desired to raise the sashes the operation is materially assisted by the springs I2. 'Ihe flexible lifting straps I6, With the ribs or beads I9 thereon traveling in the grooves 3 and 9, constitute weatherstrips for the sashes 3 and 4. By actuating the cam shafts 22 the locking shoes 2U are engaged with the vertical sides of the sashes 3 and 4 for frictionally clamping said sashes against vertical movement in any desired position in the frame I. The faces of the locking shoes are provided with vertical ribs which are engaged in the grooves 9 of the sashes 3 and 4. Of course, by rotating the cam shafts 22 in the opposite direction the locking shoes 20 are retracted for releasing the sashes 3 and 4. When it is desired to remove the sashes 3 and 4 for any reason this may be expeditiously accomplished by simply removing the outer vertical side members 6 of the frame structure I.

It is believed that the many advantages of a Window constructed in accordance with the present invention will be readily understood and a1- though a preferred embodiment of said window is as illustrated and described, it is to be under-I stood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall Within the scope of the invention as claimed.

What is claimed is:

A window comprising a frame, a sash slidable in said frame, said sash and said frame having opposed grooves therein, a flexible strap connected to the sash and operable between said sash and frame, means for actuating the strap lor urging the sash in one direction, and beads on the strap engageable in the grooves and, in conjunction with said strap, constituting means for closing the space between the sash and the frame.

ALVIN M. WHITNEY. 

